Normalize fullwidth punctuation to ASCII across codebase.

Add scripts/normalize_ambiguous_unicode.py; fix corrupted patch_instance_theme_templates.py. Preserves curly quotes in string literals; removes Git homoglyph warnings on .env.example.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/trade/trade_result_lib.py

@@ -1,10 +1,10 @@
-"""交易结果展示与入库时的语义归一化。"""
+"""交易结果展示与入库时的语义归一化."""
 
 _WIN_EPS = 1e-9
 
 
 def normalize_display_result(result):
-    """展示用：外部平仓一律视为手动平仓。"""
+    """展示用:外部平仓一律视为手动平仓."""
     res = (result or "").strip()
     if res == "外部平仓" or res.startswith("外部平仓"):
         return "手动平仓"
@@ -12,7 +12,7 @@ def normalize_display_result(result):
 
 
 def is_winning_pnl(pnl_amount) -> bool:
-    """胜率统计：盈亏为正即计为盈利单。"""
+    """胜率统计:盈亏为正即计为盈利单."""
     try:
         return float(pnl_amount or 0) > _WIN_EPS
     except (TypeError, ValueError):
@@ -20,7 +20,7 @@ def is_winning_pnl(pnl_amount) -> bool:
 
 
 def sql_effective_pnl_expr() -> str:
-    """与 to_effective_trade_dict / hub_trades_lib 一致的盈亏 SQL 表达式。"""
+    """与 to_effective_trade_dict / hub_trades_lib 一致的盈亏 SQL 表达式."""
     return "COALESCE(reviewed_pnl_amount, exchange_realized_pnl, pnl_amount, 0)"
 
 
@@ -36,7 +36,7 @@ def is_miss_trade_result(result) -> bool:
 
 
 def filter_trade_records_excluding_miss(records):
-    """列表/统计：不展示、不计入「错过」类交易记录。"""
+    """列表/统计:不展示,不计入「错过」类交易记录."""
     return [
         r
         for r in (records or [])
@@ -46,8 +46,8 @@ def filter_trade_records_excluding_miss(records):
 
 def normalize_result_with_pnl(result, pnl_amount):
     """
-    非手动平仓且实际盈利时，不应记为「止损」。
-    程序触发的止损类平仓若盈亏为正，归类为「移动止盈」。
+    非手动平仓且实际盈利时,不应记为「止损」.
+    程序触发的止损类平仓若盈亏为正,归类为「移动止盈」.
     """
     res = normalize_display_result(result)
     if res == "手动平仓":